Dominant color extraction for Media.imageCssSet

[roelvangils]

If you use this in your CSS:

<%= Media.imageCssSet('bg.jpg', {width: '100%'}) %>

You get this:

background-image: url(/media/static/bg.jpg?width=100%25)

It would be interesting, if the dominant background color of the image coule be extracted automatically, and added to the background shorthand CSS property.

For example, if the dominant color would be black:

background: #0000 url(/media/static/bg.jpg?width=100%25)

(This should be cached etc.) :)